DE2035353A1 - Writing implement - Google Patents

Description

DlPL-INQ. DIETER JANDER DR.-INQ. MANFRED BONfNQ

Patent attorneys delivery address:

Tepiyto:

8MuNCHENeO (BOGENHAUSEN) '1 BE RLIN 33 (DAH LEM)

KOLBERGER STRASSE 21 HOTTENWEG 15

Telephone: 0811/48 27 04 Telephone: 03 11 / 7ά 13 03

Telegrams; Consideration Berlin

DE July 10, 1970

Patent application 1 d u η g of the company

"Laufer" rubber goods factory Schwerdt & Renner,

Hanover Läuferweg 15-17

" Writing instrument "

The invention relates to a writing instrument with an am End of a pen-like base body arranged writing tip for transferring a stored in the base body Writing fluid on a writing medium, in particular from

Paper. . .- -

Writing instruments of the aforementioned type are in the most varied

109883/0150 BAD ORIGINAL

P ^ stscföcH-otito Burim West 1743 84 ber liiK.-f D anfc AG. ₍ Depos i ΙαΛ kasse 1

DIPL-INO-DIETERJAWDERoR-INO-MANFREDBaNlNO PATENT LAWYERS

2 -

From guides, in particular in the form of fountain pens, felt-fiber pens or ballpoint pens known. While there are now pencils with eraser inserts made of eraser at the end of the pencil, which are introduced on a larger scale, there are at least practically usable ones combined with writing devices Writing implements. of the type described above, although such devices would also be desirable in many cases = The inventor has set himself the task of closing the indicated gap has ₉ of which one is used to take up the writing fluid and the other is used to take up an eraser fluid adapted to the writing fluid, and an eraser tip is arranged at the end of the base body facing away from the writing tip β

The combined writing and erasing device according to the invention offers the considerable advantage that its manufacturer has it in hand has to coordinate the writing and erasing fluids in such a way that that an effective erasure of the writing fluid is achieved without undesirably strong attack on the writing medium can be. That way, surprisingly, simply becomes a disadvantage eliminated, which has hindered the introduction of eraser fluids so far, because the latter regularly are suitable for only one type of writing fluid and the user of a writing instrument and a certain eraser Often found himself confronted with the fact that the eraser he bought was used to erase the ones in his The writing fluid used was absolutely unsuitable. These unpleasant surprises are when using the

109883/0 150

- 5 INSPECTED.

DIPL ₁ -INO-DIETERJANDERDR ₁ -INCMANFREDBDNiNq

PATENT LAWYERS

Device according to the invention impossible and the technical achieved Progress can be addressed as substantial.

In a preferred embodiment of the invention Device, the base body is divided into two housing parts that can be connected to one another preferably via an intermediate piece, which are open towards the center of the body.

It is particularly favorable if the cavity for the erasing fluid is filled with absorbent material and an as Eraser tip serving wick or the like. protrudes from the cavity. The wick can also be made from mushroom or laser material as well made of foam rubber "

The writing fluid and / or the erasing fluid leaves accommodate themselves either directly or in cartridges in the cavities. In the last-mentioned case it turns out to be It is advantageous if the writing tip and the eraser tip each Are part of the cartridge.

A particularly expedient embodiment is characterized in that that the cartridge for the eraser is made of soft material and in the cavity for receiving the eraser liquid cartridge protrudes a hollow pin which has a channel running towards the eraser tip and is pointed at its end facing away from the eraser tip to a Allow perforation of the cartridge.

Finally, it turns out to be advisable if the Writing tip by a preferably provided with a clip first protective cap can be covered in a known manner the end of the main body facing away from the writing tip is plugged in

109883/0150

2 O 3 S

DIPL..INQ. DIETER JANDER DR.-INO- MANFRED BONlMO ~ - '

PATENT LAWYERS

is bar, and that the eraser tip is covered by a second protective cap can be covered airtight, the outer surface of which is essentially passes in alignment into the outer surfaces of the base body,

The invention is illustrated below with the aid of exemplary embodiments illustrative drawing explained in more detail «, It show:

Fig. 1 shows a combined writing and erasing device with one Cavity for the direct absorption of the eraser liquid,

Fig. 2 shows a device with a built-in eraser tip and an insertable eraser fluid cartridge or cartridge and

Fig. 3 shows a device in which the eraser tip of a part a cartridge housed in the base body is formed. ■.

In Fig. 1 11 and 12 are two housing parts connected to one another via an intermediate piece 13, which together form the basic body of the device. These housing parts enclose cavities 14, 15 which are open towards the center of the device and can be refilled when unscrewed from the intermediate piece . In the cavity 14 · a column filled with an ink cartridge 16 is housed _s as is known, for example, felt-tip pens and forth here therefore not further beschrie to be ben needs. The cavity 15, on the other hand, is filled with an insert 17 made of porous material and serves to directly receive an erasing liquid, which can be brushed onto the writing medium by means of a wick 18 forming the eraser tip at its end.

1 0-9.8 83/0 160 ■ " ⁵ "

DIP1 ..- INQ. DIETER JANDER DR.-INQ. MANFRED BONINQ ^ - V <J 0 OD

PATENT LAWYERS.

-5

In the devices shown in Figures 2 and 3 are same "or equivalent parts as in Fig. 1 with the same Provided with reference numerals. When writing and erasing device according to FIG. 2, the housing part 12 has a hollow pin 19 with a to the cavity 15 extending channel 20, in which a wick 21 sits. The hollow pin 19 is at its protruding into the cavity 15 The end is so pointed that it can be used for a puncture in a replacement cartridge 22 can be made to a Allow the erasing fluid to flow out of the cartridge.

In the embodiment according to FIG. 3, the cavities 14, 15 go one inside the other above and in the cavity 15 is an eraser fluid cartridge 23, which corresponds in structure to the writing fluid cartridge 16. The end having the eraser tip 24 of the device can be covered by a small protective cap 25, whose Outer surface · essentially with. the outer surface of the housing part 12 is aligned. On the other hand, there is one with on the other end of the device a clip 26 provided protective cap 27 inserted, the purpose Extension of the device in the writing position in the familiar catfish can be repositioned ..

109883/0150 OmG, _{NAL 1NSPECTm}

Claims (9)

Patent claims: IJf writing instrument with a writing tip arranged at the end of a pen-like base body for transferring a writing fluid stored in the base body to a writing medium, in particular made of paper, characterized in that the base body (11, 12) has two cavities (14, 15), of which the one (14) is used for receiving the writing fluid and the other (15) is used for receiving an erasing fluid tailored to the writing fluid, and that an eraser tip is arranged at the end of the base body facing away from the writing tip. 10988 3/0150 DIPL.-lNq. DIETERJANDER DK.-1NQ. MANFRED BÖNINQ PATENT LAWYERS 2) Device according to claim 1, characterized in that g e k e η η ζ e i eh η et that the main body in two, preferably via a ' Intermediate piece (13) housing parts (11, 12) that can be connected to one another which are open towards the center of the body 3) device according to claim 1 or 2, characterized ge - ζ e i c h η et that the cavities (14,15) merge into one another. 4-) Device according to one of claims 1 to 3 »thereby g e k e η η ζ ei c h η e t that the cavity (15) for the erasing fluid is filled with absorbent material (17) and one as an Eadierpitze serving wick or the like. (18) protrudes from the cavity (15). '- 5) Device according to one of claims 1 to 3 »thereby g e k e η η ζ eich ne t that the writing fluid and / or the erasing fluid are accommodated in a cartridge (16,22,23) in the cavities (14,15). 6) Device according to claim 5 »thereby g e k e ri η ζ e i c h η e t, that the writing tip and the Eadierpitze are each part of the cartridge (16,23). ■■ '■:': '■; ■ ^: ■.':; ^: · ■ ..:., ■■ ■■ 7) Device according to claim 5 »thereby g e k e η η ζ ei c h η e t, that the cartridge (22) for the Eadieriquid made of soft Material and a hollow pin (19) protrudes into the cavity (15) for receiving the eraser cartridge, which Has the eraser tip (24) running towards the channel (20) and on its end facing away from the eraser tip is pointed to a Allow perforation of the cartridge. 8) Device according to one of claims 1 to 7 »thereby g e k en η ze i c h η e t that the writing tip by a preferably 109883/0150 -3 " DIPL.-INQ. DIETER JANDER DR.-INQ. MANFRED BONINQ ^vw PATENT LAWYERS with a clip (26) provided ers.te protective cap (27) can be covered, which is turned away in a known manner on that of the writing tip β sands of the base body can be sbeckbar, and that the eraser tip (24) can be covered airtight by a second protective cap (25), the outer surface of which is essentially aligned in the outer surfaces of the main body merges * 9) Device according to one of claims 1 to 8, characterized in that that the writing tip and the fading tip designed like the tip of a felt-tip pen are. 109883/0150